/sci/ - Science & Math » Thread #11950900

1MiB, 256x256, Atomic_spin_1.gif

View Same Google iqdb SauceNAO

Anonymous Wed 29 Jul 20:59:47 2020 No.11950900 View Reply Original Report

Quoted By: >>11951072 >>11952224

Why aren't there spin 1/2 uuu and ddd baryons?

Anonymous

Anonymous Wed 29 Jul 2020 21:05:38 No.11950928 Report

Quoted By: >>11950936

https://en.wikipedia.org/wiki/Delta_baryon

Anonymous

Anonymous Wed 29 Jul 2020 21:07:52 No.11950936 Report

Quoted By:

>>11950928
Those are spin 3/2

Anonymous

Anonymous Wed 29 Jul 2020 22:01:10 No.11951072 Report

Quoted By:

>>11950900
Probs some flavour selection rule - iunno the SM is a bit too applied for me

Anonymous

Anonymous Thu 30 Jul 2020 07:25:10 No.11952224 Report

Quoted By:

>>11950900
You mean isospin. There are energised states of the delta baryons (isospin 3/2) with spin 1/2 but there are no nucleons (isospin 1/2) with three up quarks or three down quarks.
I don't know why.

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches